SYSCALL: RING ZERO

100.0% positive~~USD $12.99~~USD $9.7425% offSteam Store

About the game

Reverse-engineer a private 1990s BBS. Read disassembly, patch broken checks, optimize a nine-core rack, and write assembly firmware that locks onto live scope traces. With 200+ puzzles, full controller support and offline play, you can refine your assembly skills on all your devices!

Current players

Updated Oct 29, 2:34 PM

24hr peak

Highest count in the last 24 hours

All time peak

Highest count in recorded history

Followers

101

Updated Oct 29, 1:32 AM

Player history

133 observations in viewHistorical player data prior to Sept 2026 is from steamcharts.com.Oct 23, 2026, 8:24 AM – Oct 29, 2026, 2:34 PM

Follower history

6 observations in viewOct 22, 2026, 1:35 AM – Oct 29, 2026, 1:32 AM

Game details

Rankings: Most Played#159,928
Developer: Chilling Moose Games
Publisher: Chilling Moose Games, This Is Neat
Release date: Jul 3, 2026, 7:59 AM
Estimated Owners: 48 (6 - 344)
Estimated Revenue: $295 ($67 - $1.28k)
Languages: English
Platforms: Windows
macOS
Linux
Features: Feature names
Single-player
Steam Achievements
Adjustable Text Size
Subtitle Options
Color Alternatives
Camera Comfort
Custom Volume Controls
Playable without Timed Input
Keyboard Only Option
Mouse Only Option
Adjustable Difficulty
Save Anytime
#category_playable_at_your_own_pace
#category_contrast_controls
Steam Cloud
Family Sharing
Full controller support
Tags: Programming Logic 1990's Hacking Strategy

User reviews

Positive reviews

100.0%

Positive: 2
Negative: 0

Updated Oct 29, 4:42 AM

Review history

Mode

2 observations in viewOct 4, 2026, 4:25 AM – Oct 29, 2026, 4:42 AM

Store prices

Current prices

Latest Steam prices by currency
Currency	Price	Updated
	~~USD $12.99~~USD $9.74-25%	Oct 16
	~~AED 41.99~~AED 31.49-25%	Oct 16
	~~ARS 7.49~~ARS 5.61-25%	Oct 16
	~~A$17.95~~A$13.46-25%	Oct 16
	~~R$47.99~~R$35.99-25%	Oct 16
	~~CA$15.75~~CA$11.81-25%	Oct 16
	~~CHF 12.99~~CHF 9.74-25%	Oct 16
	~~CLP 8,399~~CLP 6,299-25%	Oct 16
	~~CN¥52.00~~CN¥39.00-25%	Oct 16
	~~COP 33,999.00~~COP 25,499.00-25%	Oct 16
	~~CRC 6,550.00~~CRC 4,910.00-25%	Oct 16
	~~€12.99~~€9.74-25%	Oct 16
	~~£12.99~~£9.74-25%	Oct 16
	~~HK$76.00~~HK$57.00-25%	Oct 16
	~~IDR 119,999.00~~IDR 89,999.00-25%	Oct 16
	~~₪46.49~~₪34.86-25%	Oct 16
	~~₹635.00~~₹476.00-25%	Oct 16
	~~JP¥1,700~~JP¥1,275-25%	Oct 16
	~~₩14,000~~₩10,500-25%	Oct 16
	~~KWD 2.80~~KWD 2.10-25%	Oct 16
	~~KZT 3,960.00~~KZT 2,970.00-25%	Oct 16
	~~MX$179.99~~MX$134.99-25%	Oct 16
	~~MYR 32.49~~MYR 24.36-25%	Oct 16
	~~NOK 155.00~~NOK 116.25-25%	Oct 16
	~~NZ$20.25~~NZ$15.18-25%	Oct 16
	~~PEN 33.49~~PEN 25.11-25%	Oct 16
	~~₱415.00~~₱311.25-25%	Oct 16
	PLN 41.61	Oct 16
	~~QAR 35.49~~QAR 26.61-25%	Oct 16
	~~RUB 590.00~~RUB 442.00-25%	Oct 16
	~~SAR 32.75~~SAR 24.56-25%	Oct 16
	~~SGD 14.49~~SGD 10.86-25%	Oct 16
	~~THB 255.00~~THB 191.25-25%	Oct 16
	~~TRY 7.49~~TRY 5.61-25%	Oct 16
	~~NT$275.00~~NT$206.00-25%	Oct 16
	~~UAH 295.00~~UAH 221.00-25%	Oct 16
	~~UYU 447.00~~UYU 335.00-25%	Oct 16
	~~₫189,500~~₫142,000-25%	Oct 16
	~~ZAR 134.99~~ZAR 101.24-25%	Oct 16

Price history

Currency

19 observations in viewHistorical price data prior to Oct 2026 is from isthereanydeal.com.Jul 3, 2026, 8:15 AM – Oct 16, 2026, 6:03 PM